Introduction
Methods
Subjects
Microneurography
Statistics
Results
Patients | Range | Controls | Range |
p value | |
---|---|---|---|---|---|
Number/gender | 12 F | 12 F | |||
Age (years) | 66 ± 3.3 | 48–85 | 62 ± 2.7 | 46–74 | 0.5 |
BMI (kg/m2) | 25 ± 1.9 | 16–34 | 24 ± 1.2 | 22–31 | 0.8 |
Hemodynamic data | |||||
SBP (mmHg) | 113 ± 15 | 92–140 | 126 ± 15 | 92–150 | 0.6 |
DBP (mmHg) | 64 ± 14 | 47–80 | 73 ± 13 | 57–95 | 0.2 |
MAP (mmHg) | 77 ± 10 | 54–92 | 90 ± 13 | 72–110 | 0.4 |
HR (beats/min) | 62 ± 14 | 45–91 | 64 ± 7 | 55–76 | 0.6 |
r–r interval (sec) | 1.00 ± 0.13 | 0.65–1.3 | 0.95 ± 0.06 | 0.78–1.08 | 0.5 |
Microneurography | |||||
MSNA (burst/min) | 32 ± 5.0 | 13–68 | 42 ± 12 | 24–68 | 0.1 |
MSNA (burst/100 heartbeats) | 49 ± 17 | 26–77 | 65 ± 12 | 43–90 | 0.03 |
MSNA (median amp %) | 37 ± 1.6 | 30–47 | 40 ± 4.6 | 33–46 | 0.1 |
Muscle sympathetic nerve activity
Variable | SIC acute phase (n = 5) | SIC recovery phase (n = 7) |
p value |
---|---|---|---|
Age (years) | 70 (60–79) | 64 (56–72) | 0.5 |
BMI (kg/m2) | 29 (24–34) | 22 (22–24) | 0.05 |
Hemodynamic variables | |||
SBP (mmHg) | 105 (104–122) | 113 (98–115) | 1.0 |
DBP (mmHg) | 56 (40–67) | 60 (57–66) | 0.4 |
MAP (mmHg) | 74 (62–80) | 78 (77–80) | 0.5 |
HR (beats/min) | 77 (51–83) | 60 (49–61) | 0.4 |
r–r interval (sec) | 0.78 (0.70–1.16) | 1.00 (0.98–1.2) | 0.4 |
LVEF (%) | 50 (35–60) | 60 (57–60) | 0.2 |
Microneurography | |||
MSNA (bursts/min) | 47 (20–50) | 25 (17–34) | 0.2 |
MSNA (bursts/100 beats) | 57 (39–65) | 51 (29–56) | 0.3 |
MSNA (median amp %) | 34 (33–42) | 39 (32–41) | 1.0 |